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Commit | Line | Data |
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7a14d768 | 1 | /* |
7e86f2f6 | 2 | * DNS-SD discovery backend for CUPS. |
7a14d768 | 3 | * |
553f29c9 | 4 | * Copyright © 2008-2018 by Apple Inc. |
7a14d768 | 5 | * |
53f8d64f MS |
6 | * Licensed under Apache License v2.0. See the file "LICENSE" for more |
7 | * information. | |
7a14d768 MS |
8 | */ |
9 | ||
10 | /* | |
11 | * Include necessary headers. | |
12 | */ | |
13 | ||
14 | #include "backend-private.h" | |
15 | #include <cups/array.h> | |
f3c17241 MS |
16 | #ifdef HAVE_DNSSD |
17 | # include <dns_sd.h> | |
18 | #endif /* HAVE_DNSSD */ | |
19 | #ifdef HAVE_AVAHI | |
20 | # include <avahi-client/client.h> | |
21 | # include <avahi-client/lookup.h> | |
22 | # include <avahi-common/simple-watch.h> | |
23 | # include <avahi-common/domain.h> | |
24 | # include <avahi-common/error.h> | |
25 | # include <avahi-common/malloc.h> | |
26 | #define kDNSServiceMaxDomainName AVAHI_DOMAIN_NAME_MAX | |
27 | #endif /* HAVE_AVAHI */ | |
7a14d768 MS |
28 | |
29 | ||
30 | /* | |
31 | * Device structure... | |
32 | */ | |
33 | ||
34 | typedef enum | |
35 | { | |
36 | CUPS_DEVICE_PRINTER = 0, /* lpd://... */ | |
d4d03398 | 37 | CUPS_DEVICE_IPPS, /* ipps://... */ |
3e7fe0ca | 38 | CUPS_DEVICE_IPP, /* ipp://... */ |
7a14d768 MS |
39 | CUPS_DEVICE_FAX_IPP, /* ipp://... */ |
40 | CUPS_DEVICE_PDL_DATASTREAM, /* socket://... */ | |
41 | CUPS_DEVICE_RIOUSBPRINT /* riousbprint://... */ | |
42 | } cups_devtype_t; | |
43 | ||
44 | ||
45 | typedef struct | |
46 | { | |
f3c17241 MS |
47 | #ifdef HAVE_DNSSD |
48 | DNSServiceRef ref; /* Service reference for query */ | |
49 | #endif /* HAVE_DNSSD */ | |
50 | #ifdef HAVE_AVAHI | |
51 | AvahiRecordBrowser *ref; /* Browser for query */ | |
52 | #endif /* HAVE_AVAHI */ | |
7a14d768 MS |
53 | char *name, /* Service name */ |
54 | *domain, /* Domain name */ | |
55 | *fullName, /* Full name */ | |
238c3832 | 56 | *make_and_model, /* Make and model from TXT record */ |
2c3f5865 MS |
57 | *device_id, /* 1284 device ID from TXT record */ |
58 | *uuid; /* UUID from TXT record */ | |
7a14d768 | 59 | cups_devtype_t type; /* Device registration type */ |
1f0275e3 MS |
60 | int priority, /* Priority associated with type */ |
61 | cups_shared, /* CUPS shared printer? */ | |
7a14d768 MS |
62 | sent; /* Did we list the device? */ |
63 | } cups_device_t; | |
64 | ||
65 | ||
38e73f87 MS |
66 | /* |
67 | * Local globals... | |
68 | */ | |
69 | ||
70 | static int job_canceled = 0; | |
71 | /* Set to 1 on SIGTERM */ | |
f3c17241 MS |
72 | #ifdef HAVE_AVAHI |
73 | static AvahiSimplePoll *simple_poll = NULL; | |
74 | /* Poll information */ | |
75 | static int got_data = 0; /* Got data from poll? */ | |
5353e5ee | 76 | static int browsers = 0; /* Number of running browsers */ |
f3c17241 | 77 | #endif /* HAVE_AVAHI */ |
38e73f87 MS |
78 | |
79 | ||
7a14d768 MS |
80 | /* |
81 | * Local functions... | |
82 | */ | |
83 | ||
f3c17241 | 84 | #ifdef HAVE_DNSSD |
a32af27c MS |
85 | static void browse_callback(DNSServiceRef sdRef, DNSServiceFlags flags, uint32_t interfaceIndex, DNSServiceErrorType errorCode, const char *serviceName, const char *regtype, const char *replyDomain, void *context) _CUPS_NONNULL(1,5,6,7,8); |
86 | static void browse_local_callback(DNSServiceRef sdRef, DNSServiceFlags flags, uint32_t interfaceIndex, DNSServiceErrorType errorCode, const char *serviceName, const char *regtype, const char *replyDomain, void *context) _CUPS_NONNULL(1,5,6,7,8); | |
f3c17241 MS |
87 | #endif /* HAVE_DNSSD */ |
88 | #ifdef HAVE_AVAHI | |
89 | static void browse_callback(AvahiServiceBrowser *browser, | |
90 | AvahiIfIndex interface, | |
91 | AvahiProtocol protocol, | |
92 | AvahiBrowserEvent event, | |
93 | const char *serviceName, | |
94 | const char *regtype, | |
95 | const char *replyDomain, | |
96 | AvahiLookupResultFlags flags, | |
97 | void *context); | |
98 | static void client_callback(AvahiClient *client, | |
99 | AvahiClientState state, | |
100 | void *context); | |
101 | #endif /* HAVE_AVAHI */ | |
102 | ||
7a14d768 | 103 | static int compare_devices(cups_device_t *a, cups_device_t *b); |
a32af27c MS |
104 | static void exec_backend(char **argv) _CUPS_NORETURN; |
105 | static cups_device_t *get_device(cups_array_t *devices, const char *serviceName, const char *regtype, const char *replyDomain) _CUPS_NONNULL(1,2,3,4); | |
f3c17241 | 106 | #ifdef HAVE_DNSSD |
a32af27c | 107 | static void query_callback(DNSServiceRef sdRef, DNSServiceFlags flags, uint32_t interfaceIndex, DNSServiceErrorType errorCode, const char *fullName, uint16_t rrtype, uint16_t rrclass, uint16_t rdlen, const void *rdata, uint32_t ttl, void *context) _CUPS_NONNULL(1,5,9,11); |
f3c17241 MS |
108 | #elif defined(HAVE_AVAHI) |
109 | static int poll_callback(struct pollfd *pollfds, | |
110 | unsigned int num_pollfds, int timeout, | |
111 | void *context); | |
112 | static void query_callback(AvahiRecordBrowser *browser, | |
113 | AvahiIfIndex interface, | |
114 | AvahiProtocol protocol, | |
115 | AvahiBrowserEvent event, | |
116 | const char *name, uint16_t rrclass, | |
117 | uint16_t rrtype, const void *rdata, | |
118 | size_t rdlen, | |
119 | AvahiLookupResultFlags flags, | |
120 | void *context); | |
121 | #endif /* HAVE_DNSSD */ | |
38e73f87 | 122 | static void sigterm_handler(int sig); |
a32af27c | 123 | static void unquote(char *dst, const char *src, size_t dstsize) _CUPS_NONNULL(1,2); |
7a14d768 MS |
124 | |
125 | ||
126 | /* | |
127 | * 'main()' - Browse for printers. | |
128 | */ | |
129 | ||
130 | int /* O - Exit status */ | |
131 | main(int argc, /* I - Number of command-line args */ | |
132 | char *argv[]) /* I - Command-line arguments */ | |
133 | { | |
c5571a1d | 134 | const char *name; /* Backend name */ |
f3c17241 MS |
135 | cups_array_t *devices; /* Device array */ |
136 | cups_device_t *device; /* Current device */ | |
137 | char uriName[1024]; /* Unquoted fullName for URI */ | |
138 | #ifdef HAVE_DNSSD | |
139 | int fd; /* Main file descriptor */ | |
140 | fd_set input; /* Input set for select() */ | |
141 | struct timeval timeout; /* Timeout for select() */ | |
7a14d768 MS |
142 | DNSServiceRef main_ref, /* Main service reference */ |
143 | fax_ipp_ref, /* IPP fax service reference */ | |
144 | ipp_ref, /* IPP service reference */ | |
145 | ipp_tls_ref, /* IPP w/TLS service reference */ | |
d4d03398 | 146 | ipps_ref, /* IPP service reference */ |
7a14d768 MS |
147 | local_fax_ipp_ref, /* Local IPP fax service reference */ |
148 | local_ipp_ref, /* Local IPP service reference */ | |
149 | local_ipp_tls_ref, /* Local IPP w/TLS service reference */ | |
d4d03398 | 150 | local_ipps_ref, /* Local IPP service reference */ |
7a14d768 MS |
151 | local_printer_ref, /* Local LPD service reference */ |
152 | pdl_datastream_ref, /* AppSocket service reference */ | |
153 | printer_ref, /* LPD service reference */ | |
154 | riousbprint_ref; /* Remote IO service reference */ | |
f3c17241 MS |
155 | #endif /* HAVE_DNSSD */ |
156 | #ifdef HAVE_AVAHI | |
157 | AvahiClient *client; /* Client information */ | |
158 | int error; /* Error code, if any */ | |
159 | #endif /* HAVE_AVAHI */ | |
38e73f87 MS |
160 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
161 | struct sigaction action; /* Actions for POSIX signals */ | |
162 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
7a14d768 MS |
163 | |
164 | ||
165 | /* | |
38e73f87 | 166 | * Don't buffer stderr, and catch SIGTERM... |
7a14d768 MS |
167 | */ |
168 | ||
169 | setbuf(stderr, NULL); | |
170 | ||
38e73f87 MS |
171 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ |
172 | sigset(SIGTERM, sigterm_handler); | |
173 | #elif defined(HAVE_SIGACTION) | |
174 | memset(&action, 0, sizeof(action)); | |
175 | ||
176 | sigemptyset(&action.sa_mask); | |
ee6ddad2 MS |
177 | action.sa_handler = sigterm_handler; |
178 | sigaction(SIGTERM, &action, NULL); | |
38e73f87 MS |
179 | #else |
180 | signal(SIGTERM, sigterm_handler); | |
181 | #endif /* HAVE_SIGSET */ | |
182 | ||
183 | /* | |
184 | * Check command-line... | |
185 | */ | |
186 | ||
7a14d768 MS |
187 | if (argc >= 6) |
188 | exec_backend(argv); | |
189 | else if (argc != 1) | |
190 | { | |
0837b7e8 MS |
191 | _cupsLangPrintf(stderr, |
192 | _("Usage: %s job-id user title copies options [file]"), | |
193 | argv[0]); | |
7a14d768 MS |
194 | return (1); |
195 | } | |
196 | ||
c5571a1d MS |
197 | /* |
198 | * Only do discovery when run as "dnssd"... | |
199 | */ | |
200 | ||
201 | if ((name = strrchr(argv[0], '/')) != NULL) | |
202 | name ++; | |
203 | else | |
204 | name = argv[0]; | |
205 | ||
206 | if (strcmp(name, "dnssd")) | |
207 | return (0); | |
208 | ||
7a14d768 MS |
209 | /* |
210 | * Create an array to track devices... | |
211 | */ | |
212 | ||
213 | devices = cupsArrayNew((cups_array_func_t)compare_devices, NULL); | |
214 | ||
215 | /* | |
216 | * Browse for different kinds of printers... | |
217 | */ | |
218 | ||
f3c17241 | 219 | #ifdef HAVE_DNSSD |
7a14d768 MS |
220 | if (DNSServiceCreateConnection(&main_ref) != kDNSServiceErr_NoError) |
221 | { | |
222 | perror("ERROR: Unable to create service connection"); | |
223 | return (1); | |
224 | } | |
225 | ||
226 | fd = DNSServiceRefSockFD(main_ref); | |
227 | ||
228 | fax_ipp_ref = main_ref; | |
229 | DNSServiceBrowse(&fax_ipp_ref, kDNSServiceFlagsShareConnection, 0, | |
230 | "_fax-ipp._tcp", NULL, browse_callback, devices); | |
231 | ||
232 | ipp_ref = main_ref; | |
233 | DNSServiceBrowse(&ipp_ref, kDNSServiceFlagsShareConnection, 0, | |
234 | "_ipp._tcp", NULL, browse_callback, devices); | |
235 | ||
236 | ipp_tls_ref = main_ref; | |
237 | DNSServiceBrowse(&ipp_tls_ref, kDNSServiceFlagsShareConnection, 0, | |
238 | "_ipp-tls._tcp", NULL, browse_callback, devices); | |
239 | ||
d4d03398 | 240 | ipps_ref = main_ref; |
85dda01c | 241 | DNSServiceBrowse(&ipps_ref, kDNSServiceFlagsShareConnection, 0, |
d4d03398 MS |
242 | "_ipps._tcp", NULL, browse_callback, devices); |
243 | ||
7a14d768 MS |
244 | local_fax_ipp_ref = main_ref; |
245 | DNSServiceBrowse(&local_fax_ipp_ref, kDNSServiceFlagsShareConnection, | |
246 | kDNSServiceInterfaceIndexLocalOnly, | |
247 | "_fax-ipp._tcp", NULL, browse_local_callback, devices); | |
248 | ||
249 | local_ipp_ref = main_ref; | |
250 | DNSServiceBrowse(&local_ipp_ref, kDNSServiceFlagsShareConnection, | |
251 | kDNSServiceInterfaceIndexLocalOnly, | |
252 | "_ipp._tcp", NULL, browse_local_callback, devices); | |
253 | ||
254 | local_ipp_tls_ref = main_ref; | |
255 | DNSServiceBrowse(&local_ipp_tls_ref, kDNSServiceFlagsShareConnection, | |
256 | kDNSServiceInterfaceIndexLocalOnly, | |
257 | "_ipp-tls._tcp", NULL, browse_local_callback, devices); | |
258 | ||
d4d03398 | 259 | local_ipps_ref = main_ref; |
85dda01c | 260 | DNSServiceBrowse(&local_ipps_ref, kDNSServiceFlagsShareConnection, |
d4d03398 MS |
261 | kDNSServiceInterfaceIndexLocalOnly, |
262 | "_ipps._tcp", NULL, browse_local_callback, devices); | |
263 | ||
7a14d768 MS |
264 | local_printer_ref = main_ref; |
265 | DNSServiceBrowse(&local_printer_ref, kDNSServiceFlagsShareConnection, | |
266 | kDNSServiceInterfaceIndexLocalOnly, | |
267 | "_printer._tcp", NULL, browse_local_callback, devices); | |
268 | ||
88f9aafc | 269 | pdl_datastream_ref = main_ref; |
7a14d768 MS |
270 | DNSServiceBrowse(&pdl_datastream_ref, kDNSServiceFlagsShareConnection, 0, |
271 | "_pdl-datastream._tcp", NULL, browse_callback, devices); | |
272 | ||
273 | printer_ref = main_ref; | |
274 | DNSServiceBrowse(&printer_ref, kDNSServiceFlagsShareConnection, 0, | |
275 | "_printer._tcp", NULL, browse_callback, devices); | |
276 | ||
277 | riousbprint_ref = main_ref; | |
278 | DNSServiceBrowse(&riousbprint_ref, kDNSServiceFlagsShareConnection, 0, | |
279 | "_riousbprint._tcp", NULL, browse_callback, devices); | |
f3c17241 MS |
280 | #endif /* HAVE_DNSSD */ |
281 | ||
282 | #ifdef HAVE_AVAHI | |
283 | if ((simple_poll = avahi_simple_poll_new()) == NULL) | |
284 | { | |
a29fd7dd | 285 | fputs("DEBUG: Unable to create Avahi simple poll object.\n", stderr); |
cab9f682 | 286 | return (0); |
f3c17241 MS |
287 | } |
288 | ||
289 | avahi_simple_poll_set_func(simple_poll, poll_callback, NULL); | |
290 | ||
291 | client = avahi_client_new(avahi_simple_poll_get(simple_poll), | |
292 | 0, client_callback, simple_poll, &error); | |
293 | if (!client) | |
294 | { | |
a29fd7dd | 295 | fputs("DEBUG: Unable to create Avahi client.\n", stderr); |
cab9f682 | 296 | return (0); |
f3c17241 MS |
297 | } |
298 | ||
5353e5ee | 299 | browsers = 6; |
f3c17241 MS |
300 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, |
301 | AVAHI_PROTO_UNSPEC, | |
302 | "_fax-ipp._tcp", NULL, 0, | |
303 | browse_callback, devices); | |
304 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
305 | AVAHI_PROTO_UNSPEC, | |
306 | "_ipp._tcp", NULL, 0, | |
307 | browse_callback, devices); | |
308 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
309 | AVAHI_PROTO_UNSPEC, | |
310 | "_ipp-tls._tcp", NULL, 0, | |
311 | browse_callback, devices); | |
312 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
313 | AVAHI_PROTO_UNSPEC, | |
314 | "_ipps._tcp", NULL, 0, | |
315 | browse_callback, devices); | |
316 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
317 | AVAHI_PROTO_UNSPEC, | |
318 | "_pdl-datastream._tcp", | |
319 | NULL, 0, | |
320 | browse_callback, | |
321 | devices); | |
322 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
323 | AVAHI_PROTO_UNSPEC, | |
324 | "_printer._tcp", NULL, 0, | |
325 | browse_callback, devices); | |
326 | #endif /* HAVE_AVAHI */ | |
7a14d768 MS |
327 | |
328 | /* | |
329 | * Loop until we are killed... | |
330 | */ | |
331 | ||
38e73f87 | 332 | while (!job_canceled) |
7a14d768 | 333 | { |
f3c17241 MS |
334 | int announce = 0; /* Announce printers? */ |
335 | ||
336 | #ifdef HAVE_DNSSD | |
7a14d768 MS |
337 | FD_ZERO(&input); |
338 | FD_SET(fd, &input); | |
339 | ||
d4d03398 | 340 | timeout.tv_sec = 0; |
f3c17241 | 341 | timeout.tv_usec = 500000; |
7a14d768 MS |
342 | |
343 | if (select(fd + 1, &input, NULL, NULL, &timeout) < 0) | |
344 | continue; | |
345 | ||
346 | if (FD_ISSET(fd, &input)) | |
347 | { | |
348 | /* | |
349 | * Process results of our browsing... | |
350 | */ | |
351 | ||
352 | DNSServiceProcessResult(main_ref); | |
353 | } | |
354 | else | |
f3c17241 MS |
355 | announce = 1; |
356 | ||
357 | #elif defined(HAVE_AVAHI) | |
358 | got_data = 0; | |
359 | ||
360 | if ((error = avahi_simple_poll_iterate(simple_poll, 500)) > 0) | |
361 | { | |
362 | /* | |
363 | * We've been told to exit the loop. Perhaps the connection to | |
364 | * Avahi failed. | |
365 | */ | |
366 | ||
367 | break; | |
368 | } | |
369 | ||
370 | if (!got_data) | |
371 | announce = 1; | |
372 | #endif /* HAVE_DNSSD */ | |
373 | ||
374 | /* fprintf(stderr, "DEBUG: announce=%d\n", announce);*/ | |
375 | ||
376 | if (announce) | |
7a14d768 MS |
377 | { |
378 | /* | |
379 | * Announce any devices we've found... | |
380 | */ | |
381 | ||
f3c17241 | 382 | #ifdef HAVE_DNSSD |
58dc1933 | 383 | DNSServiceErrorType status; /* DNS query status */ |
f3c17241 | 384 | #endif /* HAVE_DNSSD */ |
1f0275e3 | 385 | cups_device_t *best; /* Best matching device */ |
7a14d768 | 386 | char device_uri[1024]; /* Device URI */ |
5eb9da71 | 387 | int count; /* Number of queries */ |
d4d03398 | 388 | int sent; /* Number of sent */ |
7a14d768 | 389 | |
1f0275e3 | 390 | for (device = (cups_device_t *)cupsArrayFirst(devices), |
d4d03398 | 391 | best = NULL, count = 0, sent = 0; |
7a14d768 MS |
392 | device; |
393 | device = (cups_device_t *)cupsArrayNext(devices)) | |
d4d03398 MS |
394 | { |
395 | if (device->sent) | |
396 | sent ++; | |
397 | ||
398 | if (device->ref) | |
399 | count ++; | |
400 | ||
7a14d768 MS |
401 | if (!device->ref && !device->sent) |
402 | { | |
403 | /* | |
404 | * Found the device, now get the TXT record(s) for it... | |
405 | */ | |
406 | ||
f3c17241 | 407 | if (count < 50) |
5eb9da71 | 408 | { |
5eb9da71 MS |
409 | fprintf(stderr, "DEBUG: Querying \"%s\"...\n", device->fullName); |
410 | ||
f3c17241 MS |
411 | #ifdef HAVE_DNSSD |
412 | device->ref = main_ref; | |
413 | ||
58dc1933 MS |
414 | status = DNSServiceQueryRecord(&(device->ref), |
415 | kDNSServiceFlagsShareConnection, | |
416 | 0, device->fullName, | |
417 | kDNSServiceType_TXT, | |
418 | kDNSServiceClass_IN, query_callback, | |
f3c17241 | 419 | device); |
58dc1933 | 420 | if (status != kDNSServiceErr_NoError) |
f3c17241 MS |
421 | fprintf(stderr, |
422 | "ERROR: Unable to query \"%s\" for TXT records: %d\n", | |
423 | device->fullName, status); | |
424 | /* Users never see this */ | |
58dc1933 | 425 | else |
5eb9da71 | 426 | count ++; |
f3c17241 MS |
427 | |
428 | #else | |
429 | if ((device->ref = avahi_record_browser_new(client, AVAHI_IF_UNSPEC, | |
430 | AVAHI_PROTO_UNSPEC, | |
431 | device->fullName, | |
432 | AVAHI_DNS_CLASS_IN, | |
433 | AVAHI_DNS_TYPE_TXT, | |
434 | 0, | |
435 | query_callback, | |
436 | device)) == NULL) | |
437 | fprintf(stderr, | |
438 | "ERROR: Unable to query \"%s\" for TXT records: %s\n", | |
439 | device->fullName, | |
440 | avahi_strerror(avahi_client_errno(client))); | |
441 | /* Users never see this */ | |
442 | else | |
443 | count ++; | |
444 | #endif /* HAVE_AVAHI */ | |
5eb9da71 | 445 | } |
7a14d768 MS |
446 | } |
447 | else if (!device->sent) | |
448 | { | |
f3c17241 | 449 | #ifdef HAVE_DNSSD |
7a14d768 MS |
450 | /* |
451 | * Got the TXT records, now report the device... | |
452 | */ | |
453 | ||
454 | DNSServiceRefDeallocate(device->ref); | |
f3c17241 MS |
455 | #else |
456 | avahi_record_browser_free(device->ref); | |
457 | #endif /* HAVE_DNSSD */ | |
458 | ||
459 | device->ref = NULL; | |
7a14d768 | 460 | |
1f0275e3 MS |
461 | if (!best) |
462 | best = device; | |
88f9aafc MS |
463 | else if (_cups_strcasecmp(best->name, device->name) || |
464 | _cups_strcasecmp(best->domain, device->domain)) | |
1f0275e3 | 465 | { |
bf3816c7 MS |
466 | unquote(uriName, best->fullName, sizeof(uriName)); |
467 | ||
2c3f5865 MS |
468 | if (best->uuid) |
469 | httpAssembleURIf(HTTP_URI_CODING_ALL, device_uri, | |
470 | sizeof(device_uri), "dnssd", NULL, uriName, 0, | |
471 | best->cups_shared ? "/cups?uuid=%s" : "/?uuid=%s", | |
472 | best->uuid); | |
473 | else | |
474 | httpAssembleURI(HTTP_URI_CODING_ALL, device_uri, | |
475 | sizeof(device_uri), "dnssd", NULL, uriName, 0, | |
476 | best->cups_shared ? "/cups" : "/"); | |
1f0275e3 | 477 | |
749b1e90 | 478 | cupsBackendReport("network", device_uri, best->make_and_model, |
238c3832 | 479 | best->name, best->device_id, NULL); |
1f0275e3 MS |
480 | best->sent = 1; |
481 | best = device; | |
d4d03398 MS |
482 | |
483 | sent ++; | |
1f0275e3 MS |
484 | } |
485 | else if (best->priority > device->priority || | |
486 | (best->priority == device->priority && | |
487 | best->type < device->type)) | |
488 | { | |
489 | best->sent = 1; | |
490 | best = device; | |
d4d03398 MS |
491 | |
492 | sent ++; | |
1f0275e3 MS |
493 | } |
494 | else | |
d4d03398 | 495 | { |
1f0275e3 | 496 | device->sent = 1; |
d4d03398 MS |
497 | |
498 | sent ++; | |
499 | } | |
1f0275e3 | 500 | } |
d4d03398 | 501 | } |
7a14d768 | 502 | |
1f0275e3 MS |
503 | if (best) |
504 | { | |
bf3816c7 MS |
505 | unquote(uriName, best->fullName, sizeof(uriName)); |
506 | ||
2c3f5865 MS |
507 | if (best->uuid) |
508 | httpAssembleURIf(HTTP_URI_CODING_ALL, device_uri, | |
509 | sizeof(device_uri), "dnssd", NULL, uriName, 0, | |
510 | best->cups_shared ? "/cups?uuid=%s" : "/?uuid=%s", | |
511 | best->uuid); | |
512 | else | |
513 | httpAssembleURI(HTTP_URI_CODING_ALL, device_uri, | |
514 | sizeof(device_uri), "dnssd", NULL, uriName, 0, | |
515 | best->cups_shared ? "/cups" : "/"); | |
7a14d768 | 516 | |
749b1e90 | 517 | cupsBackendReport("network", device_uri, best->make_and_model, |
238c3832 | 518 | best->name, best->device_id, NULL); |
1f0275e3 | 519 | best->sent = 1; |
d4d03398 | 520 | sent ++; |
1f0275e3 | 521 | } |
d4d03398 | 522 | |
f3c17241 MS |
523 | fprintf(stderr, "DEBUG: sent=%d, count=%d\n", sent, count); |
524 | ||
5353e5ee MS |
525 | #ifdef HAVE_AVAHI |
526 | if (sent == cupsArrayCount(devices) && browsers == 0) | |
527 | #else | |
d4d03398 | 528 | if (sent == cupsArrayCount(devices)) |
5353e5ee | 529 | #endif /* HAVE_AVAHI */ |
d4d03398 | 530 | break; |
7a14d768 MS |
531 | } |
532 | } | |
38e73f87 MS |
533 | |
534 | return (CUPS_BACKEND_OK); | |
7a14d768 MS |
535 | } |
536 | ||
537 | ||
f3c17241 | 538 | #ifdef HAVE_DNSSD |
7a14d768 MS |
539 | /* |
540 | * 'browse_callback()' - Browse devices. | |
541 | */ | |
542 | ||
543 | static void | |
544 | browse_callback( | |
545 | DNSServiceRef sdRef, /* I - Service reference */ | |
546 | DNSServiceFlags flags, /* I - Option flags */ | |
547 | uint32_t interfaceIndex, /* I - Interface number */ | |
548 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
549 | const char *serviceName, /* I - Name of service/device */ | |
550 | const char *regtype, /* I - Type of service */ | |
551 | const char *replyDomain, /* I - Service domain */ | |
552 | void *context) /* I - Devices array */ | |
553 | { | |
554 | fprintf(stderr, "DEBUG2: browse_callback(sdRef=%p, flags=%x, " | |
555 | "interfaceIndex=%d, errorCode=%d, serviceName=\"%s\", " | |
556 | "regtype=\"%s\", replyDomain=\"%s\", context=%p)\n", | |
557 | sdRef, flags, interfaceIndex, errorCode, | |
a29fd7dd | 558 | serviceName, regtype, replyDomain, context); |
7a14d768 MS |
559 | |
560 | /* | |
561 | * Only process "add" data... | |
562 | */ | |
563 | ||
564 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
565 | return; | |
566 | ||
567 | /* | |
568 | * Get the device... | |
569 | */ | |
570 | ||
571 | get_device((cups_array_t *)context, serviceName, regtype, replyDomain); | |
572 | } | |
573 | ||
574 | ||
575 | /* | |
576 | * 'browse_local_callback()' - Browse local devices. | |
577 | */ | |
578 | ||
579 | static void | |
580 | browse_local_callback( | |
581 | DNSServiceRef sdRef, /* I - Service reference */ | |
582 | DNSServiceFlags flags, /* I - Option flags */ | |
583 | uint32_t interfaceIndex, /* I - Interface number */ | |
584 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
585 | const char *serviceName, /* I - Name of service/device */ | |
586 | const char *regtype, /* I - Type of service */ | |
587 | const char *replyDomain, /* I - Service domain */ | |
588 | void *context) /* I - Devices array */ | |
589 | { | |
590 | cups_device_t *device; /* Device */ | |
591 | ||
592 | ||
593 | fprintf(stderr, "DEBUG2: browse_local_callback(sdRef=%p, flags=%x, " | |
594 | "interfaceIndex=%d, errorCode=%d, serviceName=\"%s\", " | |
595 | "regtype=\"%s\", replyDomain=\"%s\", context=%p)\n", | |
596 | sdRef, flags, interfaceIndex, errorCode, | |
a29fd7dd | 597 | serviceName, regtype, replyDomain, context); |
7a14d768 MS |
598 | |
599 | /* | |
600 | * Only process "add" data... | |
601 | */ | |
602 | ||
603 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
604 | return; | |
605 | ||
606 | /* | |
607 | * Get the device... | |
608 | */ | |
609 | ||
610 | device = get_device((cups_array_t *)context, serviceName, regtype, | |
611 | replyDomain); | |
612 | ||
613 | /* | |
614 | * Hide locally-registered devices... | |
615 | */ | |
616 | ||
617 | fprintf(stderr, "DEBUG: Hiding local printer \"%s\"...\n", | |
618 | device->fullName); | |
619 | device->sent = 1; | |
620 | } | |
f3c17241 MS |
621 | #endif /* HAVE_DNSSD */ |
622 | ||
623 | ||
624 | #ifdef HAVE_AVAHI | |
625 | /* | |
626 | * 'browse_callback()' - Browse devices. | |
627 | */ | |
628 | ||
629 | static void | |
630 | browse_callback( | |
631 | AvahiServiceBrowser *browser, /* I - Browser */ | |
632 | AvahiIfIndex interface, /* I - Interface index (unused) */ | |
633 | AvahiProtocol protocol, /* I - Network protocol (unused) */ | |
634 | AvahiBrowserEvent event, /* I - What happened */ | |
635 | const char *name, /* I - Service name */ | |
636 | const char *type, /* I - Registration type */ | |
637 | const char *domain, /* I - Domain */ | |
638 | AvahiLookupResultFlags flags, /* I - Flags */ | |
639 | void *context) /* I - Devices array */ | |
640 | { | |
641 | AvahiClient *client = avahi_service_browser_get_client(browser); | |
642 | /* Client information */ | |
643 | ||
644 | ||
645 | (void)interface; | |
646 | (void)protocol; | |
647 | (void)context; | |
648 | ||
649 | switch (event) | |
650 | { | |
651 | case AVAHI_BROWSER_FAILURE: | |
652 | fprintf(stderr, "DEBUG: browse_callback: %s\n", | |
653 | avahi_strerror(avahi_client_errno(client))); | |
654 | avahi_simple_poll_quit(simple_poll); | |
655 | break; | |
656 | ||
657 | case AVAHI_BROWSER_NEW: | |
658 | /* | |
659 | * This object is new on the network. | |
660 | */ | |
661 | ||
662 | if (flags & AVAHI_LOOKUP_RESULT_LOCAL) | |
663 | { | |
664 | /* | |
665 | * This comes from the local machine so ignore it. | |
666 | */ | |
667 | ||
668 | fprintf(stderr, "DEBUG: Ignoring local service %s.\n", name); | |
669 | } | |
670 | else | |
671 | { | |
672 | /* | |
673 | * Create a device entry for it if it doesn't yet exist. | |
674 | */ | |
675 | ||
676 | get_device((cups_array_t *)context, name, type, domain); | |
677 | } | |
678 | break; | |
679 | ||
680 | case AVAHI_BROWSER_REMOVE: | |
f3c17241 MS |
681 | case AVAHI_BROWSER_CACHE_EXHAUSTED: |
682 | break; | |
5353e5ee MS |
683 | |
684 | case AVAHI_BROWSER_ALL_FOR_NOW: | |
685 | browsers--; | |
686 | break; | |
f3c17241 MS |
687 | } |
688 | } | |
689 | ||
690 | ||
691 | /* | |
692 | * 'client_callback()' - Avahi client callback function. | |
693 | */ | |
694 | ||
695 | static void | |
696 | client_callback( | |
697 | AvahiClient *client, /* I - Client information (unused) */ | |
698 | AvahiClientState state, /* I - Current state */ | |
699 | void *context) /* I - User data (unused) */ | |
700 | { | |
701 | (void)client; | |
702 | (void)context; | |
703 | ||
704 | /* | |
705 | * If the connection drops, quit. | |
706 | */ | |
707 | ||
708 | if (state == AVAHI_CLIENT_FAILURE) | |
709 | { | |
710 | fputs("DEBUG: Avahi connection failed.\n", stderr); | |
711 | avahi_simple_poll_quit(simple_poll); | |
712 | } | |
713 | } | |
714 | #endif /* HAVE_AVAHI */ | |
7a14d768 MS |
715 | |
716 | ||
717 | /* | |
718 | * 'compare_devices()' - Compare two devices. | |
719 | */ | |
720 | ||
721 | static int /* O - Result of comparison */ | |
722 | compare_devices(cups_device_t *a, /* I - First device */ | |
723 | cups_device_t *b) /* I - Second device */ | |
724 | { | |
38e73f87 | 725 | return (strcmp(a->name, b->name)); |
7a14d768 MS |
726 | } |
727 | ||
728 | ||
729 | /* | |
730 | * 'exec_backend()' - Execute the backend that corresponds to the | |
731 | * resolved service name. | |
732 | */ | |
733 | ||
734 | static void | |
735 | exec_backend(char **argv) /* I - Command-line arguments */ | |
736 | { | |
737 | const char *resolved_uri, /* Resolved device URI */ | |
738 | *cups_serverbin; /* Location of programs */ | |
739 | char scheme[1024], /* Scheme from URI */ | |
740 | *ptr, /* Pointer into scheme */ | |
741 | filename[1024]; /* Backend filename */ | |
742 | ||
743 | ||
744 | /* | |
745 | * Resolve the device URI... | |
746 | */ | |
747 | ||
e07d4801 MS |
748 | job_canceled = -1; |
749 | ||
0268488e MS |
750 | while ((resolved_uri = cupsBackendDeviceURI(argv)) == NULL) |
751 | { | |
752 | _cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer.")); | |
753 | sleep(10); | |
754 | ||
755 | if (getenv("CLASS") != NULL) | |
756 | exit(CUPS_BACKEND_FAILED); | |
757 | } | |
7a14d768 MS |
758 | |
759 | /* | |
760 | * Extract the scheme from the URI... | |
761 | */ | |
762 | ||
763 | strlcpy(scheme, resolved_uri, sizeof(scheme)); | |
764 | if ((ptr = strchr(scheme, ':')) != NULL) | |
765 | *ptr = '\0'; | |
766 | ||
767 | /* | |
768 | * Get the filename of the backend... | |
769 | */ | |
770 | ||
771 | if ((cups_serverbin = getenv("CUPS_SERVERBIN")) == NULL) | |
772 | cups_serverbin = CUPS_SERVERBIN; | |
773 | ||
774 | snprintf(filename, sizeof(filename), "%s/backend/%s", cups_serverbin, scheme); | |
775 | ||
776 | /* | |
38e73f87 | 777 | * Overwrite the device URI and run the new backend... |
7a14d768 MS |
778 | */ |
779 | ||
780 | setenv("DEVICE_URI", resolved_uri, 1); | |
781 | ||
782 | argv[0] = (char *)resolved_uri; | |
783 | ||
784 | fprintf(stderr, "DEBUG: Executing backend \"%s\"...\n", filename); | |
785 | ||
786 | execv(filename, argv); | |
787 | ||
788 | fprintf(stderr, "ERROR: Unable to execute backend \"%s\": %s\n", filename, | |
789 | strerror(errno)); | |
790 | exit(CUPS_BACKEND_STOP); | |
791 | } | |
792 | ||
793 | ||
f3c17241 MS |
794 | /* |
795 | * 'device_type()' - Get DNS-SD type enumeration from string. | |
796 | */ | |
797 | ||
7e86f2f6 MS |
798 | static cups_devtype_t /* O - Device type */ |
799 | device_type(const char *regtype) /* I - Service registration type */ | |
f3c17241 MS |
800 | { |
801 | #ifdef HAVE_AVAHI | |
802 | if (!strcmp(regtype, "_ipp._tcp")) | |
803 | return (CUPS_DEVICE_IPP); | |
804 | else if (!strcmp(regtype, "_ipps._tcp") || | |
805 | !strcmp(regtype, "_ipp-tls._tcp")) | |
806 | return (CUPS_DEVICE_IPPS); | |
807 | else if (!strcmp(regtype, "_fax-ipp._tcp")) | |
808 | return (CUPS_DEVICE_FAX_IPP); | |
809 | else if (!strcmp(regtype, "_printer._tcp")) | |
810 | return (CUPS_DEVICE_PDL_DATASTREAM); | |
811 | #else | |
812 | if (!strcmp(regtype, "_ipp._tcp.")) | |
813 | return (CUPS_DEVICE_IPP); | |
814 | else if (!strcmp(regtype, "_ipps._tcp.") || | |
815 | !strcmp(regtype, "_ipp-tls._tcp.")) | |
816 | return (CUPS_DEVICE_IPPS); | |
817 | else if (!strcmp(regtype, "_fax-ipp._tcp.")) | |
818 | return (CUPS_DEVICE_FAX_IPP); | |
819 | else if (!strcmp(regtype, "_printer._tcp.")) | |
820 | return (CUPS_DEVICE_PRINTER); | |
821 | else if (!strcmp(regtype, "_pdl-datastream._tcp.")) | |
822 | return (CUPS_DEVICE_PDL_DATASTREAM); | |
823 | #endif /* HAVE_AVAHI */ | |
824 | ||
825 | return (CUPS_DEVICE_RIOUSBPRINT); | |
826 | } | |
827 | ||
828 | ||
7a14d768 MS |
829 | /* |
830 | * 'get_device()' - Create or update a device. | |
831 | */ | |
832 | ||
833 | static cups_device_t * /* O - Device */ | |
834 | get_device(cups_array_t *devices, /* I - Device array */ | |
835 | const char *serviceName, /* I - Name of service/device */ | |
836 | const char *regtype, /* I - Type of service */ | |
837 | const char *replyDomain) /* I - Service domain */ | |
838 | { | |
839 | cups_device_t key, /* Search key */ | |
840 | *device; /* Device */ | |
58dc1933 MS |
841 | char fullName[kDNSServiceMaxDomainName]; |
842 | /* Full name for query */ | |
7a14d768 MS |
843 | |
844 | ||
845 | /* | |
846 | * See if this is a new device... | |
847 | */ | |
848 | ||
38e73f87 | 849 | key.name = (char *)serviceName; |
f3c17241 | 850 | key.type = device_type(regtype); |
7a14d768 | 851 | |
1f0275e3 MS |
852 | for (device = cupsArrayFind(devices, &key); |
853 | device; | |
854 | device = cupsArrayNext(devices)) | |
88f9aafc | 855 | if (_cups_strcasecmp(device->name, key.name)) |
1f0275e3 MS |
856 | break; |
857 | else if (device->type == key.type) | |
38e73f87 | 858 | { |
88f9aafc MS |
859 | if (!_cups_strcasecmp(device->domain, "local.") && |
860 | _cups_strcasecmp(device->domain, replyDomain)) | |
38e73f87 MS |
861 | { |
862 | /* | |
863 | * Update the .local listing to use the "global" domain name instead. | |
864 | * The backend will try local lookups first, then the global domain name. | |
865 | */ | |
866 | ||
867 | free(device->domain); | |
868 | device->domain = strdup(replyDomain); | |
869 | ||
f3c17241 | 870 | #ifdef HAVE_DNSSD |
38e73f87 MS |
871 | DNSServiceConstructFullName(fullName, device->name, regtype, |
872 | replyDomain); | |
f3c17241 MS |
873 | #else /* HAVE_AVAHI */ |
874 | avahi_service_name_join(fullName, kDNSServiceMaxDomainName, | |
a29fd7dd | 875 | serviceName, regtype, replyDomain); |
f3c17241 MS |
876 | #endif /* HAVE_DNSSD */ |
877 | ||
38e73f87 MS |
878 | free(device->fullName); |
879 | device->fullName = strdup(fullName); | |
880 | } | |
881 | ||
1f0275e3 | 882 | return (device); |
38e73f87 | 883 | } |
7a14d768 | 884 | |
1f0275e3 MS |
885 | /* |
886 | * Yes, add the device... | |
887 | */ | |
7a14d768 | 888 | |
1f0275e3 MS |
889 | device = calloc(sizeof(cups_device_t), 1); |
890 | device->name = strdup(serviceName); | |
891 | device->domain = strdup(replyDomain); | |
892 | device->type = key.type; | |
893 | device->priority = 50; | |
7a14d768 | 894 | |
1f0275e3 | 895 | cupsArrayAdd(devices, device); |
7a14d768 MS |
896 | |
897 | /* | |
1f0275e3 | 898 | * Set the "full name" of this service, which is used for queries... |
7a14d768 MS |
899 | */ |
900 | ||
f3c17241 | 901 | #ifdef HAVE_DNSSD |
58dc1933 | 902 | DNSServiceConstructFullName(fullName, serviceName, regtype, replyDomain); |
f3c17241 | 903 | #else /* HAVE_AVAHI */ |
28af862a | 904 | avahi_service_name_join(fullName, kDNSServiceMaxDomainName, serviceName, regtype, replyDomain); |
f3c17241 MS |
905 | #endif /* HAVE_DNSSD */ |
906 | ||
7a14d768 MS |
907 | device->fullName = strdup(fullName); |
908 | ||
909 | return (device); | |
910 | } | |
911 | ||
912 | ||
f3c17241 MS |
913 | #ifdef HAVE_AVAHI |
914 | /* | |
915 | * 'poll_callback()' - Wait for input on the specified file descriptors. | |
916 | * | |
917 | * Note: This function is needed because avahi_simple_poll_iterate is broken | |
918 | * and always uses a timeout of 0 (!) milliseconds. | |
ac032efa | 919 | * (https://github.com/lathiat/avahi/issues/127) |
f3c17241 MS |
920 | */ |
921 | ||
922 | static int /* O - Number of file descriptors matching */ | |
923 | poll_callback( | |
924 | struct pollfd *pollfds, /* I - File descriptors */ | |
925 | unsigned int num_pollfds, /* I - Number of file descriptors */ | |
926 | int timeout, /* I - Timeout in milliseconds (unused) */ | |
927 | void *context) /* I - User data (unused) */ | |
928 | { | |
929 | int val; /* Return value */ | |
930 | ||
931 | ||
932 | (void)timeout; | |
933 | (void)context; | |
934 | ||
935 | val = poll(pollfds, num_pollfds, 500); | |
936 | ||
937 | if (val < 0) | |
938 | fprintf(stderr, "DEBUG: poll_callback: %s\n", strerror(errno)); | |
939 | else if (val > 0) | |
940 | got_data = 1; | |
941 | ||
942 | return (val); | |
943 | } | |
944 | #endif /* HAVE_AVAHI */ | |
945 | ||
946 | ||
947 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) | |
948 | # ifdef HAVE_DNSSD | |
7a14d768 MS |
949 | /* |
950 | * 'query_callback()' - Process query data. | |
951 | */ | |
952 | ||
953 | static void | |
954 | query_callback( | |
955 | DNSServiceRef sdRef, /* I - Service reference */ | |
956 | DNSServiceFlags flags, /* I - Data flags */ | |
957 | uint32_t interfaceIndex, /* I - Interface */ | |
958 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
959 | const char *fullName, /* I - Full service name */ | |
960 | uint16_t rrtype, /* I - Record type */ | |
961 | uint16_t rrclass, /* I - Record class */ | |
962 | uint16_t rdlen, /* I - Length of record data */ | |
963 | const void *rdata, /* I - Record data */ | |
964 | uint32_t ttl, /* I - Time-to-live */ | |
f3c17241 | 965 | void *context) /* I - Device */ |
7a14d768 | 966 | { |
f3c17241 MS |
967 | # else |
968 | /* | |
969 | * 'query_callback()' - Process query data. | |
970 | */ | |
7a14d768 | 971 | |
f3c17241 MS |
972 | static void |
973 | query_callback( | |
974 | AvahiRecordBrowser *browser, /* I - Record browser */ | |
975 | AvahiIfIndex interfaceIndex, | |
976 | /* I - Interface index (unused) */ | |
977 | AvahiProtocol protocol, /* I - Network protocol (unused) */ | |
978 | AvahiBrowserEvent event, /* I - What happened? */ | |
979 | const char *fullName, /* I - Service name */ | |
980 | uint16_t rrclass, /* I - Record class */ | |
981 | uint16_t rrtype, /* I - Record type */ | |
982 | const void *rdata, /* I - TXT record */ | |
983 | size_t rdlen, /* I - Length of TXT record */ | |
984 | AvahiLookupResultFlags flags, /* I - Flags */ | |
985 | void *context) /* I - Device */ | |
986 | { | |
987 | AvahiClient *client = avahi_record_browser_get_client(browser); | |
988 | /* Client information */ | |
989 | # endif /* HAVE_DNSSD */ | |
990 | char *ptr; /* Pointer into string */ | |
991 | cups_device_t *device = (cups_device_t *)context; | |
992 | /* Device */ | |
993 | const uint8_t *data, /* Pointer into data */ | |
994 | *datanext, /* Next key/value pair */ | |
995 | *dataend; /* End of entire TXT record */ | |
996 | uint8_t datalen; /* Length of current key/value pair */ | |
997 | char key[256], /* Key string */ | |
998 | value[256], /* Value string */ | |
999 | make_and_model[512], /* Manufacturer and model */ | |
1000 | model[256], /* Model */ | |
c1420c87 | 1001 | pdl[256], /* PDL */ |
f3c17241 MS |
1002 | device_id[2048]; /* 1284 device ID */ |
1003 | ||
1004 | ||
1005 | # ifdef HAVE_DNSSD | |
7a14d768 MS |
1006 | fprintf(stderr, "DEBUG2: query_callback(sdRef=%p, flags=%x, " |
1007 | "interfaceIndex=%d, errorCode=%d, fullName=\"%s\", " | |
1008 | "rrtype=%u, rrclass=%u, rdlen=%u, rdata=%p, ttl=%u, " | |
1009 | "context=%p)\n", | |
1261ca01 | 1010 | sdRef, flags, interfaceIndex, errorCode, fullName, rrtype, rrclass, rdlen, rdata, ttl, context); |
7a14d768 MS |
1011 | |
1012 | /* | |
1013 | * Only process "add" data... | |
1014 | */ | |
1015 | ||
1016 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
1017 | return; | |
1018 | ||
f3c17241 MS |
1019 | # else |
1020 | fprintf(stderr, "DEBUG2: query_callback(browser=%p, interfaceIndex=%d, " | |
1021 | "protocol=%d, event=%d, fullName=\"%s\", rrclass=%u, " | |
1022 | "rrtype=%u, rdata=%p, rdlen=%u, flags=%x, context=%p)\n", | |
1261ca01 | 1023 | browser, interfaceIndex, protocol, event, fullName, rrclass, rrtype, rdata, (unsigned)rdlen, flags, context); |
f3c17241 | 1024 | |
7a14d768 | 1025 | /* |
f3c17241 | 1026 | * Only process "add" data... |
7a14d768 MS |
1027 | */ |
1028 | ||
f3c17241 MS |
1029 | if (event != AVAHI_BROWSER_NEW) |
1030 | { | |
1031 | if (event == AVAHI_BROWSER_FAILURE) | |
1032 | fprintf(stderr, "ERROR: %s\n", | |
1033 | avahi_strerror(avahi_client_errno(client))); | |
7a14d768 | 1034 | |
f3c17241 MS |
1035 | return; |
1036 | } | |
1037 | # endif /* HAVE_DNSSD */ | |
7a14d768 | 1038 | |
f3c17241 MS |
1039 | /* |
1040 | * Pull out the priority and make and model from the TXT | |
1041 | * record and save it... | |
1042 | */ | |
7a14d768 | 1043 | |
f3c17241 MS |
1044 | device_id[0] = '\0'; |
1045 | make_and_model[0] = '\0'; | |
c1420c87 | 1046 | pdl[0] = '\0'; |
7a14d768 | 1047 | |
5a9febac | 1048 | strlcpy(model, "Unknown", sizeof(model)); |
1f0275e3 | 1049 | |
f3c17241 MS |
1050 | for (data = rdata, dataend = data + rdlen; |
1051 | data < dataend; | |
1052 | data = datanext) | |
7a14d768 | 1053 | { |
f3c17241 MS |
1054 | /* |
1055 | * Read a key/value pair starting with an 8-bit length. Since the | |
1056 | * length is 8 bits and the size of the key/value buffers is 256, we | |
1057 | * don't need to check for overflow... | |
1058 | */ | |
1059 | ||
1060 | datalen = *data++; | |
1061 | ||
1062 | if (!datalen || (data + datalen) > dataend) | |
1f0275e3 | 1063 | break; |
f3c17241 MS |
1064 | |
1065 | datanext = data + datalen; | |
1066 | ||
1067 | for (ptr = key; data < datanext && *data != '='; data ++) | |
7e86f2f6 | 1068 | *ptr++ = (char)*data; |
f3c17241 MS |
1069 | *ptr = '\0'; |
1070 | ||
1071 | if (data < datanext && *data == '=') | |
1f0275e3 | 1072 | { |
f3c17241 | 1073 | data ++; |
7a14d768 | 1074 | |
f3c17241 | 1075 | if (data < datanext) |
07623986 | 1076 | memcpy(value, data, (size_t)(datanext - data)); |
f3c17241 | 1077 | value[datanext - data] = '\0'; |
7a14d768 | 1078 | |
f3c17241 MS |
1079 | fprintf(stderr, "DEBUG2: query_callback: \"%s=%s\".\n", |
1080 | key, value); | |
1081 | } | |
1082 | else | |
1083 | { | |
1084 | fprintf(stderr, "DEBUG2: query_callback: \"%s\" with no value.\n", | |
1085 | key); | |
1086 | continue; | |
1087 | } | |
7a14d768 | 1088 | |
f3c17241 MS |
1089 | if (!_cups_strncasecmp(key, "usb_", 4)) |
1090 | { | |
1091 | /* | |
1092 | * Add USB device ID information... | |
1093 | */ | |
7a14d768 | 1094 | |
f3c17241 | 1095 | ptr = device_id + strlen(device_id); |
7e86f2f6 | 1096 | snprintf(ptr, sizeof(device_id) - (size_t)(ptr - device_id), "%s:%s;", key + 4, value); |
f3c17241 | 1097 | } |
238c3832 | 1098 | |
f3c17241 MS |
1099 | if (!_cups_strcasecmp(key, "usb_MFG") || !_cups_strcasecmp(key, "usb_MANU") || |
1100 | !_cups_strcasecmp(key, "usb_MANUFACTURER")) | |
5a9febac | 1101 | strlcpy(make_and_model, value, sizeof(make_and_model)); |
f3c17241 | 1102 | else if (!_cups_strcasecmp(key, "usb_MDL") || !_cups_strcasecmp(key, "usb_MODEL")) |
5a9febac | 1103 | strlcpy(model, value, sizeof(model)); |
f3c17241 MS |
1104 | else if (!_cups_strcasecmp(key, "product") && !strstr(value, "Ghostscript")) |
1105 | { | |
1106 | if (value[0] == '(') | |
1f0275e3 | 1107 | { |
238c3832 | 1108 | /* |
f3c17241 | 1109 | * Strip parenthesis... |
238c3832 | 1110 | */ |
7a14d768 | 1111 | |
f3c17241 MS |
1112 | if ((ptr = value + strlen(value) - 1) > value && *ptr == ')') |
1113 | *ptr = '\0'; | |
7a14d768 | 1114 | |
5a9febac | 1115 | strlcpy(model, value + 1, sizeof(model)); |
f3c17241 MS |
1116 | } |
1117 | else | |
5a9febac | 1118 | strlcpy(model, value, sizeof(model)); |
f3c17241 MS |
1119 | } |
1120 | else if (!_cups_strcasecmp(key, "ty")) | |
1121 | { | |
5a9febac | 1122 | strlcpy(model, value, sizeof(model)); |
1f0275e3 | 1123 | |
f3c17241 | 1124 | if ((ptr = strchr(model, ',')) != NULL) |
238c3832 | 1125 | *ptr = '\0'; |
f3c17241 | 1126 | } |
c1420c87 MS |
1127 | else if (!_cups_strcasecmp(key, "pdl")) |
1128 | strlcpy(pdl, value, sizeof(pdl)); | |
f3c17241 MS |
1129 | else if (!_cups_strcasecmp(key, "priority")) |
1130 | device->priority = atoi(value); | |
1131 | else if ((device->type == CUPS_DEVICE_IPP || | |
1132 | device->type == CUPS_DEVICE_IPPS || | |
1133 | device->type == CUPS_DEVICE_PRINTER) && | |
1134 | !_cups_strcasecmp(key, "printer-type")) | |
1135 | { | |
1136 | /* | |
1137 | * This is a CUPS printer! | |
1138 | */ | |
238c3832 | 1139 | |
f3c17241 | 1140 | device->cups_shared = 1; |
238c3832 | 1141 | |
f3c17241 MS |
1142 | if (device->type == CUPS_DEVICE_PRINTER) |
1143 | device->sent = 1; | |
1144 | } | |
2c3f5865 MS |
1145 | else if (!_cups_strcasecmp(key, "UUID")) |
1146 | device->uuid = strdup(value); | |
f3c17241 | 1147 | } |
238c3832 | 1148 | |
f3c17241 MS |
1149 | if (device->device_id) |
1150 | free(device->device_id); | |
238c3832 | 1151 | |
f3c17241 MS |
1152 | if (!device_id[0] && strcmp(model, "Unknown")) |
1153 | { | |
1154 | if (make_and_model[0]) | |
1155 | snprintf(device_id, sizeof(device_id), "MFG:%s;MDL:%s;", | |
1156 | make_and_model, model); | |
1157 | else if (!_cups_strncasecmp(model, "designjet ", 10)) | |
14a71491 | 1158 | snprintf(device_id, sizeof(device_id), "MFG:HP;MDL:%s;", model + 10); |
f3c17241 | 1159 | else if (!_cups_strncasecmp(model, "stylus ", 7)) |
14a71491 | 1160 | snprintf(device_id, sizeof(device_id), "MFG:EPSON;MDL:%s;", model + 7); |
f3c17241 MS |
1161 | else if ((ptr = strchr(model, ' ')) != NULL) |
1162 | { | |
1163 | /* | |
1164 | * Assume the first word is the make... | |
1165 | */ | |
238c3832 | 1166 | |
07623986 | 1167 | memcpy(make_and_model, model, (size_t)(ptr - model)); |
f3c17241 | 1168 | make_and_model[ptr - model] = '\0'; |
238c3832 | 1169 | |
14a71491 | 1170 | snprintf(device_id, sizeof(device_id), "MFG:%s;MDL:%s;", |
f3c17241 MS |
1171 | make_and_model, ptr + 1); |
1172 | } | |
1173 | } | |
238c3832 | 1174 | |
c1420c87 MS |
1175 | if (device_id[0] && |
1176 | !strstr(device_id, "CMD:") && | |
1177 | !strstr(device_id, "COMMAND SET:") && | |
1178 | (strstr(pdl, "application/pdf") || | |
1179 | strstr(pdl, "application/postscript") || | |
1180 | strstr(pdl, "application/vnd.hp-PCL") || | |
1181 | strstr(pdl, "image/"))) | |
1182 | { | |
1183 | value[0] = '\0'; | |
1184 | if (strstr(pdl, "application/pdf")) | |
1185 | strlcat(value, ",PDF", sizeof(value)); | |
1186 | if (strstr(pdl, "application/postscript")) | |
1187 | strlcat(value, ",PS", sizeof(value)); | |
1188 | if (strstr(pdl, "application/vnd.hp-PCL")) | |
1189 | strlcat(value, ",PCL", sizeof(value)); | |
1190 | for (ptr = strstr(pdl, "image/"); ptr; ptr = strstr(ptr, "image/")) | |
1191 | { | |
1192 | char *valptr = value + strlen(value); | |
1193 | /* Pointer into value */ | |
1194 | ||
1195 | if (valptr < (value + sizeof(value) - 1)) | |
1196 | *valptr++ = ','; | |
1197 | ||
1198 | ptr += 6; | |
1199 | while (isalnum(*ptr & 255) || *ptr == '-' || *ptr == '.') | |
1200 | { | |
1201 | if (isalnum(*ptr & 255) && valptr < (value + sizeof(value) - 1)) | |
7e86f2f6 | 1202 | *valptr++ = (char)toupper(*ptr++ & 255); |
c1420c87 MS |
1203 | else |
1204 | break; | |
1205 | } | |
1206 | ||
1207 | *valptr = '\0'; | |
1208 | } | |
1209 | ||
1210 | ptr = device_id + strlen(device_id); | |
7e86f2f6 | 1211 | snprintf(ptr, sizeof(device_id) - (size_t)(ptr - device_id), "CMD:%s;", value + 1); |
c1420c87 MS |
1212 | } |
1213 | ||
f3c17241 MS |
1214 | if (device_id[0]) |
1215 | device->device_id = strdup(device_id); | |
1216 | else | |
1217 | device->device_id = NULL; | |
7a14d768 | 1218 | |
f3c17241 MS |
1219 | if (device->make_and_model) |
1220 | free(device->make_and_model); | |
7a14d768 | 1221 | |
f3c17241 MS |
1222 | if (make_and_model[0]) |
1223 | { | |
1224 | strlcat(make_and_model, " ", sizeof(make_and_model)); | |
1225 | strlcat(make_and_model, model, sizeof(make_and_model)); | |
238c3832 | 1226 | |
553f29c9 MS |
1227 | if (!_cups_strncasecmp(make_and_model, "EPSON EPSON ", 12)) |
1228 | _cups_strcpy(make_and_model, make_and_model + 6); | |
1229 | else if (!_cups_strncasecmp(make_and_model, "HP HP ", 6)) | |
1230 | _cups_strcpy(make_and_model, make_and_model + 3); | |
1231 | else if (!_cups_strncasecmp(make_and_model, "Lexmark International Lexmark ", 30)) | |
1232 | _cups_strcpy(make_and_model, make_and_model + 22); | |
1233 | ||
f3c17241 | 1234 | device->make_and_model = strdup(make_and_model); |
7a14d768 | 1235 | } |
f3c17241 MS |
1236 | else |
1237 | device->make_and_model = strdup(model); | |
7a14d768 | 1238 | } |
f3c17241 | 1239 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
7a14d768 MS |
1240 | |
1241 | ||
38e73f87 | 1242 | /* |
f3c17241 | 1243 | * 'sigterm_handler()' - Handle termination signals. |
38e73f87 MS |
1244 | */ |
1245 | ||
1246 | static void | |
1247 | sigterm_handler(int sig) /* I - Signal number (unused) */ | |
1248 | { | |
321d8d57 MS |
1249 | (void)sig; |
1250 | ||
e07d4801 | 1251 | if (job_canceled) |
c1de66f9 | 1252 | _exit(CUPS_BACKEND_OK); |
e07d4801 MS |
1253 | else |
1254 | job_canceled = 1; | |
38e73f87 MS |
1255 | } |
1256 | ||
1257 | ||
7a14d768 MS |
1258 | /* |
1259 | * 'unquote()' - Unquote a name string. | |
1260 | */ | |
1261 | ||
1262 | static void | |
1263 | unquote(char *dst, /* I - Destination buffer */ | |
1264 | const char *src, /* I - Source string */ | |
1265 | size_t dstsize) /* I - Size of destination buffer */ | |
1266 | { | |
1267 | char *dstend = dst + dstsize - 1; /* End of destination buffer */ | |
1268 | ||
1269 | ||
1270 | while (*src && dst < dstend) | |
1271 | { | |
1272 | if (*src == '\\') | |
1273 | { | |
1274 | src ++; | |
1275 | if (isdigit(src[0] & 255) && isdigit(src[1] & 255) && | |
1276 | isdigit(src[2] & 255)) | |
1277 | { | |
1278 | *dst++ = ((((src[0] - '0') * 10) + src[1] - '0') * 10) + src[2] - '0'; | |
1279 | src += 3; | |
1280 | } | |
1281 | else | |
1282 | *dst++ = *src++; | |
1283 | } | |
1284 | else | |
1285 | *dst++ = *src ++; | |
1286 | } | |
1287 | ||
1288 | *dst = '\0'; | |
1289 | } |